CVE-2022-2586
Published: June 26, 2024
Official Description
Linux Kernel contains a use-after-free vulnerability in the nft_object, allowing local attackers to escalate privileges.
CISA KEV Advisory
Linux Kernel Use-After-Free Vulnerability
Linux Kernel contains a use-after-free vulnerability in the nft_object, allowing local attackers to escalate privileges.
Apply updates per vendor instructions or discontinue use of the product if updates are unavailable.
Risk Analysis
This high-severity use-after-free vulnerability in the Linux Kernel's nft_object allows local attackers to escalate privileges. While no CVSS score is provided, its inclusion in CISA's KEV catalog and an EPSS score of 0.02496 confirm active exploitation, making it a critical issue.
This vulnerability is actively exploited in the wild and is listed in CISA's KEV catalog. Exploitation requires local access to the system.
Update the Linux kernel to a patched version to address the use-after-free vulnerability. Regularly apply security updates to all Linux systems.
Technical Analysis
CVE-2022-2586 requires local access, meaning attackers must already have a foothold on the target system.
Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
CISA has added CVE-2022-2586 to the Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. U.S. federal agencies are required to patch this within the mandated timeframe, and all organizations should treat remediation as urgent.
Affected Vendors & Products
Exploit & PoC Resources
All References (1)
Quick Facts
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2022-2586 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
- !CISA KEV: Federal agencies must patch per BOD 22-01 timeline
- !Active exploitation confirmed — treat as P1